Fuel Pump Connector

Thomas1968

Well-known member
Oct 19, 2004
179
0
Canada
Hi guys, 96' Disco SE7 - 4.0L I've been having intermittent starting problems for the last couple weeks. I'm pretty sure I've narrowed it all down to the connector (multi plug) that attaches to the fuel pump. Anytime I can't start the truck (it just turns over but won't fire), I just wiggle the connector and it starts fine. Anybody know what this plug is called or where I can get it? Best way to replace it? Opinions as to why one of the Pins is burnt and what exactly is each pin/wire for?
 

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S

Sirfoss

Guest
Harness

Tom,
Just get the harness from your dealer...not to costly approx 15 inches long. Real easy to change. They had problems with these back then.
Mike :eek:
 

Thomas1968

Well-known member
Oct 19, 2004
179
0
Canada
Thanks for the reply, where does the other end of the harness go to? Does it come back up into the rear area somewhere?
 

Thomas1968

Well-known member
Oct 19, 2004
179
0
Canada
I just called my local LR dealer, the parts guy says they don't keep the harness in stock and that the one they can get is a conversion type from the older style pump to the newer one, so it may not fit mine. He suggests I bring it to the service department to get them to check it. ($$$$). How would I know if it has a newer pump fitted to it already? I've had the vehicle for only 6 months and I don't know if a newer pump was installed or what the differences are. Any suggestions are appreciated.
 

neil30076

Well-known member
Apr 20, 2004
276
0
Cary, NC - ex - San Diego
Burnt pin in socket is due to the socket having to much play when connected to the pump, causing overheating and eventual burning.
If you are electrically competent, go to http://www.wiringproducts.com/ and tell them what you need. They can ship you a replacement connector, which you will have to wire yourself. If you don't want to do it yourself, take the truck and connector to a local auto electrical shop, and have them replace it. Part costs around $10, and less than 1 hour labor.
Neil
 
B

beowulf

Guest
Thomas,

First, I have always had very good experiences with the service department at both of my "local" Rover dealerships ( Bedford, NH and Scarborogh, ME). I have had them do several major jobs on my truck and a few minor ones that I just couldn't do for one reason or another and I have often called them up for advice and recommendations. So don't take this as dealer-bashing. That being said...

Before you take the time out of your schedule, drive down and sit in a waiting room while someone charges > $80 to look at it and tell you a lot of what you already know, try some alternative sources. I have gotten a lot of my electronic and mechanical parts from Atlantic British and Rovers North ( I don't know your geographic location, but they both have quick shipping turn around ). Both take the time on the phone to make sure you're getting what you need and if you spoke with them and emailed them your pics they can probably find what you are after.

Although I have not used any "junk yard" sources, a lot of other people on the board have a lot of luck with that as well. If you can either track back the wire to the connector at the other end (probably not that easy) or just have a junk yard cut off the plug and first 12" of wire you can probably get it very cheap. This method assumes you are comfortable with making the wire-to-wire connections yourself, but if you can get it for $10 vs. $80 just to have it diagnosed it may be worth the attempt.

Finally, have you inspected the plug really close to see if you can track the problem back to a specific incomming wire that cuases the jiggle-to-fix issue, or does it seem to be the enitre plug? Perhaps you could use an appropriate electronics-safe cleaner on the plug and prongs or an after market product to increase the quality of the electrical connection between the two.

Just my 20 millidollars worth. Good luck!!
 

Thomas1968

Well-known member
Oct 19, 2004
179
0
Canada
All great advice guys, thanks.

I am very comfortable with wiring a new connector - not a problem. I will check out alternate sources for the connector. I would prefer to replace that 15" harness just for the sake of ease and not having to worry about jerry-rigged wiring. But if I have to I will.
I sent a message with pics to a LR mechanic that I met and trust to see if he can locate the harness for me, but in the meantime I'll check out some wrecking yards and maybe call some other sources as you suggested.

If it all works out maybe I'll take pics and post in the tech section. Most of the posts I've read about fuel pump problems or "no start" problems may be as simple as the connector.
 
B

beowulf

Guest
If you come up with a part number or "offical name" of the thing, let us know too!
 

rpm2429

Well-known member
Jun 11, 2004
54
0
denver, co
I had the exact same problem with my "96 SE-7 and I just went to a salvage yard and picked up and new harness for about $20.00. It has been working great ever since. As a foot-note the guy wanted way too much for the harness, and as I walked out the door, I pointed up to the sign and said, " See it says SALVAGE", He came out as I was getting in my rig and said O.K., $20.00. I noticed that on my old harness the pins were corrodded and I just cleaned them up and it got me to the yard and back. Good Luck, Ron